Title:
【発明の名称】適応騒音消去高効率ファン
Document Type and Number:
Japanese Patent JPH06508695
Kind Code:
A
Abstract:
This invention relates to a new type of compact high efficiency fan utilizing microphones (74, 75), a loudspeaker (69, 70) and a totally adaptive noise cancellation controller (73) whereby the design of the fan eliminates broadband noise and the controller reduces the remaining tonal component thus producing a high efficient silent fan.
Inventors:
Ziggler, Eldon W
McCrawlin, Michael Pea
Berschlen, Le
Eite Sadie, Coslow
Arnold, Mitchell
Friesen, Robert
McCrawlin, Michael Pea
Berschlen, Le
Eite Sadie, Coslow
Arnold, Mitchell
Friesen, Robert
Application Number:
JP50292892A
Publication Date:
September 29, 1994
Filing Date:
July 16, 1991
Export Citation:
Assignee:
Noise Cancellation Technologies, Inc.
International Classes:
F04D29/66; G10K11/178; (IPC1-7): G10K11/16
Attorney, Agent or Firm:
Warren G. Simor